Four Seasons 178321 A/C Compressor

Overview of Four Seasons New Compressor 178321

The Four Seasons New Compressor 178321 is designed specifically for Subaru Impreza, Legacy, and Outback models. This A/C compressor ensures reliable air conditioning performance by using R134a refrigerant and comes oil filled with compatible Pag 46 refrigerant oil.

• Compatible refrigerant type: R134a
• Includes oil filled with Pag 46 refrigerant oil
• 6-groove serpentine pulley for efficient belt engagement
• 12-volt coil with 1 wire lead coil clock position
• Includes clutch and control valve switch
• Tangent mount type with precise mounting distance of 40.64 mm
• O-ring type suction and discharge ports with included O-rings
• Designed for Nippondenso Tse14c compressor type

Detailed Product Description

This Four Seasons New Compressor 178321 is a new, direct replacement A/C compressor engineered for Subaru Impreza, Legacy, and Outback vehicles. It features a 6-groove serpentine pulley with a diameter of approximately 112.5 mm (4.4375 inches) and a clutch maximum diameter matching the pulley size. The compressor is pre-filled with Pag 46 oil, compatible with R134a refrigerant systems, ensuring proper lubrication and system longevity. The included clutch and control valve switch simplify installation and system integration. The compressor uses a tangent mount with a mounting distance of 40.64 mm, designed to fit precisely in the OEM mounting location. Both suction and discharge ports utilize O-ring seals, with included O-rings (part numbers 24661 and 24681) to ensure leak-free connections.

About the Four Seasons New Compressor Product Line

The Four Seasons New Compressor line offers brand-new, fully assembled A/C compressors designed to meet or exceed OEM specifications. This product line focuses on providing reliable, ready-to-install compressors that include essential components such as clutches and control valves. The New Compressor 178321 is part of this line, delivering a complete solution for Subaru vehicles requiring a replacement compressor with compatible refrigerant and oil specifications.

Common Applications and Issues Addressed

• Replacement for failing or seized A/C compressors in Subaru Impreza, Legacy, and Outback
• Restores proper air conditioning cooling performance
• Eliminates compressor clutch engagement problems
• Resolves refrigerant leaks due to worn seals or ports
• Addresses noisy or inefficient compressor operation

Installation Notes and Tips

• May require use of original equipment (OE) manifold for proper fitment
• Mounting hardware is not included; reuse existing hardware or source separately
• Ensure system is evacuated and recharged with R134a refrigerant and Pag 46 oil
• Verify electrical connections match the pin-type terminal and 1 wire lead coil
• Inspect serpentine belt condition and alignment with the 6-groove pulley

Quality Assurance and Warranty

The Four Seasons New Compressor 178321 is a new, high-quality replacement part manufactured to meet OEM standards. It includes essential components such as the clutch and control valve switch to ensure compatibility and performance. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Always consult product documentation or supplier information for exact warranty terms.